Has anyone had experience with this? It's a 2012 RS. All my buttons are working but for some reason it wont unlock. I have discovered in order to keep the alarm from blowing that I can lock the doors through the keyhole on door and unlock the same way. I want to use my fob and it wont let me unlock it. I put a new battery in and same issue. This just started 2 days ago. I have no idea if the remote start works though because I'm afraid to try it now. I had always used it in the mornings but I dont want to wake anyone if it sounds the alarm off while I unlock door through keyhole.

 

You can try disconnecting the battery for awhile. My 2011 Impala would has the accessories act up once in a with, The battery disconnect gave it a reset.

Truly a shot in the dark.